hi guys. I try to create a sip trunk to connect voip number issued by my local phone provider. and pressing button I get 404 page

Verify the SIP gateway URI, ensure correct auth credentials are set username/password or IP, configure your provider to route calls to your number@sip.vapi.ai, and if the issue persists, delete and recreate the SIP trunk in Vapi..

thank you. done. sip trunk appeared.number conected but not working. smth wrong. solving with gpt help